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 (fragment, antigen-binding)
originally, either of two identical fragments, each containing an antigen combining site, obtained by papain cleavage of the IgG molecule; now generally used as an adjective in terms such as Fab fragment or region, referring to an “arm” of any immunoglobulin monomer, i.e., one light chain and the adjoining heavy chain VH and CH1 domains.
digoxin immune Fab (ovine) a preparation of antigen-binding fragments derived from specific antidigoxin antibodies produced in sheep that have been immunized with digoxin coupled as a hapten to human serum albumin, used as an antidote to life-threatening digoxin and digitoxin overdose; administered intravenously.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Abbreviation for French-American-British (classification of acute leukemias). See: FAB classification.
Farlex Partner Medical Dictionary © Farlex 2012


A popular term for any of the alternative beverages that were formulated in response to an increase in the US federal wine tax in the early 1990s. The spirits industry responded by moving away from wine coolers to malt-based alcoholic beverages including "hard" lemonades and fruit coolers and drinks.


A gene on chromosome Xp22.2 that encodes a protein of the Fanconi anaemia complementation group (here, complementation group B), the members of which are related not by sequence similarity, but rather by their assembly into a common nuclear protein complex.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Abbreviation for French-American-British classification system.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


The monovalent antigen-binding fragment of an antibody molecule obtained when the protein is digested with the enzyme papain. It consists of an intact light chain and the immediately-associated terminal and domains of a heavy chain.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
Fab Four fans attending The Mersey Beatles' O2 Academy gig -- which covers all areas of The Beatles career from Beatlemania to Sgt Pepper and Abbey Road -- are in for a real treat.
But a sudden blizzard prevented the Fab Four from making the final 11-mile journey to Birmingham.
Despite the ruling, Mr Risan said the settlement was a fraction of what the companies had originally wanted and that the site, which no longer has the Fab Four's music available, is still working to register copyrights for 800,000 recordings.
THE Forces' Sweetheart yesterday trumped the Fab Four to become the oldest living artist in the world to have a No 1 album.
The 14 records are set for worldwide CD release on September 9, the same day as a video game of the Fab Four, titled "The Beatles: Rock Band," said Apple Corps Ltd.
The politicians were asked for their Fab Four favourites as part of Liverpool's Beatles Day celebration.
Offering unique interpretations on John Lennon, Paul McCartney, George Harrison and Ringo Starr, and the popular music they made which swept the world, the artwork comprising Beatles Art: Fantastic New Artwork Of The Fab Four ranges from traditional paintings and sculptures to digital work and caricatures.
McCartney, an integral part of the Fab Four, played an array of Beatles tunes and other songs for three hours.
However, when the fab four split in 1970, Harrison was bursting at the seams with material galore.
For masses of pop-music fans mourning the demise of the Beatles, Ono was simply a troublemaker, "that woman" who ultimately broke up the Fab Four.
Two sections of James Kudelka's popular Ghosts, a suite set to seven Beatles songs, completes the "Puzzle." Miles and the flexible Nathalie Huot take the lyrics to the Fab Four's "Come Together"--"Come together, right now, over me"--literally, stepping over and around the body of Robert Rubinger, who is lying on the ground.
In all, the "Fab Four" placed more than 50% of the corporate bonds--largely in accounts that had previously not held GTE securities.